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Soft Down Stay Top Opening H-Type Right is a Sugatsune America lid support designed for a top-opening flap door, so it controls movement on upward-opening cabinet or work-surface fronts where a stable open position matters. This lid support is part of the Lid Supports and Stays product class, so it is intended to manage opening and holding forces on lift-up fronts instead of relying solely on hinges. The down stay is specified for use with piano, butt or concealed hinges, which lets you integrate it into common hinge layouts without changing your preferred hinge style. This right-hand version is described as H-Type, which defines its torque range and helps align it to door size and weight needs. The soft down stay function and top-opening design work together so the flap opens to a defined position and is supported for access.
This Sugatsune America soft down stay is described for a top-opening flap door, so the mounting orientation is intended for doors hinged along the upper edge of the opening. The hardware is marked as a right-hand H-Type version, which indicates the side of the opening it fits and the torque band it is designed to handle. The specified torque calculation is given as Torque = Door Height x 1/2 x Door Weight, so you can relate the door dimensions and mass to the required torque when pairing two stays. The H-Type torque range of 70 to 110 kgf.cm, or 61 to 95 lbs. inch per pair, defines the intended door load range for a pair, guiding selection toward doors that fall in this band.
This HDS-20S/HR-WT soft down stay is specified for a top-opening flap door, so it is positioned where the door opens upward from the cabinet front and needs support while raised. The description states that it is used with piano, butt or concealed hinges, meaning the stay works alongside these hinge types on the same flap door. Because it is a right-hand H-Type version within the Lid Supports and Stays class, it fits a right-side installation where a matching layout is designed. The product description identifies it as a soft down stay and lid support, so its role is to manage movement and holding of the flap rather than acting as the primary hinge. This combination lets a designer plan a hinge line with a piano or butt hinge while relying on the stay for controlled opening behavior.
The H-Type torque range is given as 70 to 110 kgf.cm, or 61 to 95 lbs. inch per pair, so when the torque calculation Torque = Door Height x 1/2 x Door Weight falls in this range, the stay capacity aligns with the door demand. This HDS-20S design is described as holding the door in the fully opened position, which means that once the flap reaches its open position, the stay provides the support required to keep it there during access. The description also states that the lid will self open past the free stop angle, so after passing this angle the mechanism continues to open the flap to its supported position without additional lifting. Because the product is part of the Lid Supports and Stays class and defined as a soft down stay, these torque and holding characteristics directly affect how consistently the door reaches and maintains its fully opened position.
The HDS-20S/HR-WT soft down stay is designed for a top-opening flap door, so it supports doors that open upward from the cabinet or work-surface front.
The Sugatsune America soft down stay is described for use with piano, butt or concealed hinges, so it coordinates with these common hinge types on the same flap door.
The H-Type torque range of 70 to 110 kgf.cm, or 61 to 95 lbs. inch per pair, indicates the door torque load this stay pair is intended to support.
The torque for this soft down stay is calculated using Torque = Door Height x 1/2 x Door Weight, so door size and weight directly define the required torque.
HDS-20S is described as designed to hold the door in the fully opened position, so once opened the flap remains supported at that position during use.
The description states the lid will self open past the free stop angle, so after that point the mechanism continues opening the flap toward its fully open position.
The Sugatsune America HDS-20S/HR-WT soft down stay is specified for a top-opening flap door, so it targets upward-opening applications where controlled movement and holding are needed. Its H-Type torque range of 70 to 110 kgf.cm per pair and the given torque calculation directly relate door height and weight to the stay capacity, supporting selection for doors in that range. The ability to use it with piano, butt or concealed hinges, combined with its role in holding the door fully opened and self opening past the free stop angle, gives this right-hand lid support a defined function in flap door layouts. For projects matching this top-opening and torque profile, this soft down stay aligns hardware behavior to the described performance.